#pragma once
#include <string>
#include <stdexcept>
#include <memory>
#include <optional>
#include <vector>
#include <cheat-base/Logger.h>

#include <filesystem>
#include <SimpleIni.h>


#define LOG_LAST_ERROR(fmt, ...) util::LogLastError(__FILE__, __LINE__, fmt, __VA_ARGS__)

#define UPDATE_DELAY(delay) \
							static ULONGLONG s_LastUpdate = 0;       \
                            ULONGLONG currentTime = GetTickCount64();\
                            if (s_LastUpdate + (delay) > currentTime)  \
                                return;                              \
							s_LastUpdate = currentTime;

#define UPDATE_DELAY_VAR(type, name, delay) \
							static type name = {};                   \
							static ULONGLONG s_LastUpdate = 0;       \
                            ULONGLONG currentTime = GetTickCount64();\
                            if (s_LastUpdate + (delay) > currentTime)  \
                                return name;                         \
                            s_LastUpdate = currentTime;

#define COMPILE_TIME_CRC32_STR(STR) std::integral_constant<uint32_t, util::CRC32(STR, sizeof(STR) / sizeof(char) - 1)>::value
#define COMPILE_TIME_CRC32_WSTR(STR) std::integral_constant<uint32_t, util::CRC32(STR, sizeof(STR) / sizeof(wchar_t) - 1)>::value

namespace util 
{
	std::optional<std::string> SelectFile(const char* filter, const char* title);
	std::optional<std::string> SelectDirectory(const char* title);
	std::optional<std::string> GetOrSelectPath(CSimpleIni& ini, const char* section, const char* name, const char* friendName, const char* filter);

	void OpenURL(const char* url);
	std::string GetLastErrorAsString(DWORD errorId = 0);
	int64_t GetCurrentTimeMillisec();

	std::string GetModulePath(HMODULE hModule = nullptr);

	void SetCurrentPath(const std::filesystem::path& curren_path);
	std::filesystem::path GetCurrentPath();

	std::vector<std::string> StringSplit(const std::string& delimiter, const std::string& content);
	std::string SplitWords(const std::string& value);
	std::string Unsplit(const std::string& value);
	std::string MakeCapital(std::string value);
	std::vector<uint8_t> from_hex_string(std::string string);
	std::string to_hex_string(uint8_t* barray, int length);
	bool IsLittleEndian();

	std::string base64_encode(BYTE const* buf, unsigned int bufLen);
	std::vector<BYTE> base64_decode(std::string const&);

	int64_t GetTimezoneBias();

	void OpenConsole();

	template<typename ... Args>
	std::string string_format(const std::string& format, Args ... args)
	{
		int size_s = std::snprintf(nullptr, 0, format.c_str(), args ...) + 1; // Extra space for '\0'
		if (size_s <= 0) { throw std::runtime_error("Error during formatting."); }
		auto size = static_cast<size_t>(size_s);
		auto buf = std::make_unique<char[]>(size);
		std::snprintf(buf.get(), size, format.c_str(), args ...);
		return std::string(buf.get(), buf.get() + size - 1); // We don't want the '\0' inside
	}

	template<typename ... Args>
	void LogLastError(const char* filepath, int line, const char* fmt, Args ... args)
	{
		auto errorId = ::GetLastError();
		auto newFmt = string_format("%s. Error: %d %s", fmt, errorId, GetLastErrorAsString(errorId).c_str());
		Logger::Log(Logger::Level::Error, filepath, line, newFmt.c_str(), args ...);
	}

	template<class T>
	static T ReadMapped(void* data, int offset, bool is_little_endian = false)
	{
		T value; // No need to initialize, because we will fill it later
		constexpr size_t value_size = sizeof(T);
		auto ptr_src = reinterpret_cast<char*>(data) + offset;
		auto ptr_value = reinterpret_cast<char*>(&value);

		if (IsLittleEndian() == is_little_endian)
		{
			memcpy_s(ptr_value, value_size, ptr_src, value_size);
			return value;
		}

		for (size_t i = 0; i < value_size; i++)
			ptr_value[i] = ptr_src[value_size - i - 1];
		
		return value;
	}

	template<class T>
	static void WriteMapped(void* data, int offset, const T& value, bool is_little_endian = false)
	{
		constexpr size_t value_size = sizeof(T);
		auto ptr_dest = reinterpret_cast<char*>(data) + offset;
		auto ptr_value = reinterpret_cast<const char*>(&value);

		if (IsLittleEndian() == is_little_endian)
		{
			memcpy_s(ptr_dest, value_size, ptr_value, value_size);
			return;
		}

		for (size_t i = 0; i < value_size; i++)
			ptr_dest[i] = ptr_value[value_size - i - 1];
	}

	// CRC32 Table (zlib polynomial)
	static constexpr uint32_t crc_table[256] = {
		0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419, 0x706af48f,
		0xe963a535, 0x9e6495a3,	0x0edb8832, 0x79dcb8a4, 0xe0d5e91e, 0x97d2d988,
		0x09b64c2b, 0x7eb17cbd, 0xe7b82d07, 0x90bf1d91, 0x1db71064, 0x6ab020f2,
		0xf3b97148, 0x84be41de,	0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7,
		0x136c9856, 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec,	0x14015c4f, 0x63066cd9,
		0xfa0f3d63, 0x8d080df5,	0x3b6e20c8, 0x4c69105e, 0xd56041e4, 0xa2677172,
		0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b,	0x35b5a8fa, 0x42b2986c,
		0xdbbbc9d6, 0xacbcf940,	0x32d86ce3, 0x45df5c75, 0xdcd60dcf, 0xabd13d59,
		0x26d930ac, 0x51de003a, 0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423,
		0xcfba9599, 0xb8bda50f, 0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924,
		0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d,	0x76dc4190, 0x01db7106,
		0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f, 0x9fbfe4a5, 0xe8b8d433,
		0x7807c9a2, 0x0f00f934, 0x9609a88e, 0xe10e9818, 0x7f6a0dbb, 0x086d3d2d,
		0x91646c97, 0xe6635c01, 0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e,
		0x6c0695ed, 0x1b01a57b, 0x8208f4c1, 0xf50fc457, 0x65b0d9c6, 0x12b7e950,
		0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3, 0xfbd44c65,
		0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2, 0x4adfa541, 0x3dd895d7,
		0xa4d1c46d, 0xd3d6f4fb, 0x4369e96a, 0x346ed9fc, 0xad678846, 0xda60b8d0,
		0x44042d73, 0x33031de5, 0xaa0a4c5f, 0xdd0d7cc9, 0x5005713c, 0x270241aa,
		0xbe0b1010, 0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f,
		0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17, 0x2eb40d81,
		0xb7bd5c3b, 0xc0ba6cad, 0xedb88320, 0x9abfb3b6, 0x03b6e20c, 0x74b1d29a,
		0xead54739, 0x9dd277af, 0x04db2615, 0x73dc1683, 0xe3630b12, 0x94643b84,
		0x0d6d6a3e, 0x7a6a5aa8, 0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1,
		0xf00f9344, 0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb,
		0x196c3671, 0x6e6b06e7, 0xfed41b76, 0x89d32be0, 0x10da7a5a, 0x67dd4acc,
		0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5, 0xd6d6a3e8, 0xa1d1937e,
		0x38d8c2c4, 0x4fdff252, 0xd1bb67f1, 0xa6bc5767, 0x3fb506dd, 0x48b2364b,
		0xd80d2bda, 0xaf0a1b4c, 0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55,
		0x316e8eef, 0x4669be79, 0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236,
		0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f, 0xc5ba3bbe, 0xb2bd0b28,
		0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31, 0x2cd99e8b, 0x5bdeae1d,
		0x9b64c2b0, 0xec63f226, 0x756aa39c, 0x026d930a, 0x9c0906a9, 0xeb0e363f,
		0x72076785, 0x05005713, 0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38,
		0x92d28e9b, 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21, 0x86d3d2d4, 0xf1d4e242,
		0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1, 0x18b74777,
		0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c, 0x8f659eff, 0xf862ae69,
		0x616bffd3, 0x166ccf45, 0xa00ae278, 0xd70dd2ee, 0x4e048354, 0x3903b3c2,
		0xa7672661, 0xd06016f7, 0x4969474d, 0x3e6e77db, 0xaed16a4a, 0xd9d65adc,
		0x40df0b66, 0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9,
		0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605, 0xcdd70693,
		0x54de5729, 0x23d967bf, 0xb3667a2e, 0xc4614ab8, 0x5d681b02, 0x2a6f2b94,
		0xb40bbe37, 0xc30c8ea1, 0x5a05df1b, 0x2d02ef8d
	};

	constexpr uint32_t CRC32(const char* data, uint32_t len, uint32_t crc = 0)
	{
		crc = crc ^ 0xFFFFFFFFU;
		for (uint32_t i = 0; i < len; i++)
		{
			crc = crc_table[*data ^ (crc & 0xFF)] ^ (crc >> 8);
			data++;
		}
		crc = crc ^ 0xFFFFFFFFU;
		return crc;
	}

	constexpr uint32_t CRC32(const wchar_t* data, uint32_t len, uint32_t crc = 0)
	{
		crc = crc ^ 0xFFFFFFFFU;
		for (uint32_t i = 0; i < len; i++)
		{
			for (auto j = 0; j < sizeof(wchar_t); j++)
			{
				crc = crc_table[((*data >> (8 * j)) & 0xFF) ^ (crc & 0xFF)] ^ (crc >> 8);
			}

			data++;
		}
		crc = crc ^ 0xFFFFFFFFU;
		return crc;
	}
}
